Text excerpt from log report for Day 18:
A complex irrigation system is needed to use this extremely dry area as farmland. There are three irrigation canals: the All American Canal (AAC) from the south, designed to provide the water-supply for the Imperial Valley; the Coachella Canal, built in 1948, (as a branch-off of the AAC), and the Colorado Aqueduct, which was built between 1931 - 1941. They all provide water for the Coachella Valley, i.e. the high-intensity agricultural area in the north (see fig. 17/1 from log report for Day 17). The Salton Sea separates these two valleys.
Picture: Oasis Date Garden in Coachella Valley
Picture: Imperial Valley - alfalfa production near the border to Mexico
The two agricultural areas mentioned here focus on different agricultural activities. Cattle breeding and alfalfa cultivation (as feed for the cattle) dominate Imperial Valley. By contrast, the Coachella Valley is characterized by fruit orchards, date plantations, and wine-growing areas. Furthermore, tourism is very important there, in particular in and around Palm Springs and Palm Desert, situated at the bottom of San Jacinto Mountain (elev. 10,804 ft.). This northwest region of Coachella Valley takes advantage of the area's clear, blue skies and its spectacular mountain views to attract tourists. Since the 1920's, several U.S. presidents and movie stars have chosen to live there.